The meaning of the Acronym EMS is...

EMS is

• Easy Mind System
• Earn Money Sleeping
• Ego Means Survival

More Meanings For EMS:

• Expanded Memory Specification
• Expanded Memory System
• Expanded Memory Services
• Expanded Memory Specification
• Electronic Music System
• Enhanced Messaging Service
• Enhanced Messaging System
• Enterprise Mobility Server
• Encouragement And Mutual Support
• Eat My Shorts
• Enterprise Management Suite
• Electronic Music Studio
• Element Management System
• Enhanced Message Service
• Enhanced Messaging Services

EMS is also in:

• General
• Hardware
• Networking
• SMS
• Software
• Telecom